Congrats on a really well-executed puzzle platformer idea! This game feels fun to move around in, and I think speedrunners would get a kick out of an expanded version of this. The locks have a generous hitbox when you interact with them which really helps keep the gameplay smooth - I could see this being a pitfall of other games of this type but you nailed it! One detail that added a great touch was the character's movement sound panning in my headset - added a great deal of immersion! Definitely a "WRITE THAT DOWN!!" moment. =D